package cn.iocoder.yudao.module.crossborder.logistics.service.impl;

import cn.iocoder.yudao.module.crossborder.logistics.api.dto.LogisticsDTO;
import cn.iocoder.yudao.module.crossborder.logistics.api.dto.TrackingDTO;
import cn.iocoder.yudao.module.crossborder.logistics.service.LogisticsService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;

/**
 * 物流管理 Service 实现类
 *
 * @author LHL
 */
@Service
@Slf4j
public class LogisticsServiceImpl implements LogisticsService {

    @Override
    public LogisticsDTO getLogistics(Long id) {
        log.info("获取物流记录，id: {}", id);
        
        // TODO: 实际实现中应该从数据库查询
        LogisticsDTO dto = new LogisticsDTO();
        dto.setId(id);
        dto.setOrderId(1001L);
        dto.setProviderId(2001L);
        dto.setProviderName("顺丰速运");
        dto.setLogisticsType(1);
        dto.setStatus(1);
        dto.setTrackingNumber("SF1234567890");
        dto.setOriginAddress("广东省深圳市南山区");
        dto.setDestinationAddress("上海市浦东新区张江高科技园区");
        dto.setRecipientName("张三");
        dto.setRecipientPhone("13800138000");
        dto.setWeight(new BigDecimal("1.5"));
        dto.setVolume(new BigDecimal("1000"));
        dto.setFreight(new BigDecimal("15.00"));
        dto.setInsuranceFee(new BigDecimal("2.00"));
        dto.setTotalFee(new BigDecimal("17.00"));
        dto.setEstimatedShipTime(LocalDateTime.now().plusHours(2));
        dto.setActualShipTime(LocalDateTime.now());
        dto.setEstimatedArrivalTime(LocalDateTime.now().plusDays(1));
        dto.setActualArrivalTime(null);
        dto.setSignTime(null);
        dto.setSignPerson(null);
        dto.setRemark("易碎物品，请小心处理");
        dto.setCreateTime(LocalDateTime.now());
        dto.setUpdateTime(LocalDateTime.now());
        
        return dto;
    }

    @Override
    public List<LogisticsDTO> getLogisticsList(List<Long> ids) {
        log.info("获取物流记录列表，ids: {}", ids);
        
        List<LogisticsDTO> result = new ArrayList<>();
        for (Long id : ids) {
            result.add(getLogistics(id));
        }
        return result;
    }

    @Override
    public Long createLogistics(LogisticsDTO logistics) {
        log.info("创建物流记录，orderId: {}, providerId: {}", 
                logistics.getOrderId(), logistics.getProviderId());
        
        // TODO: 实际实现中应该保存到数据库
        Long id = System.currentTimeMillis(); // 模拟生成ID
        logistics.setId(id);
        logistics.setCreateTime(LocalDateTime.now());
        logistics.setUpdateTime(LocalDateTime.now());
        
        return id;
    }

    @Override
    public TrackingDTO getTracking(String trackingNumber) {
        log.info("获取物流跟踪信息，trackingNumber: {}", trackingNumber);
        
        // TODO: 实际实现中应该调用物流服务商API获取跟踪信息
        TrackingDTO dto = new TrackingDTO();
        dto.setId(1L);
        dto.setLogisticsId(1001L);
        dto.setTrackingNumber(trackingNumber);
        dto.setProviderId(2001L);
        dto.setProviderName("顺丰速运");
        dto.setCurrentStatus(2);
        dto.setCurrentStatusDesc("运输中");
        dto.setCurrentLocation("上海转运中心");
        dto.setLastUpdateTime(LocalDateTime.now());
        dto.setRemark("正常运输中");
        dto.setCreateTime(LocalDateTime.now());
        dto.setUpdateTime(LocalDateTime.now());
        
        // 模拟跟踪事件
        List<TrackingDTO.TrackingEventDTO> events = new ArrayList<>();
        
        TrackingDTO.TrackingEventDTO event1 = new TrackingDTO.TrackingEventDTO();
        event1.setId(1L);
        event1.setEventType(1);
        event1.setEventDesc("快件已从【深圳】发出");
        event1.setLocation("深圳市");
        event1.setEventTime(LocalDateTime.now().minusHours(6));
        event1.setOperator("张三");
        event1.setRemark("正常");
        events.add(event1);
        
        TrackingDTO.TrackingEventDTO event2 = new TrackingDTO.TrackingEventDTO();
        event2.setId(2L);
        event2.setEventType(2);
        event2.setEventDesc("快件到达【上海转运中心】");
        event2.setLocation("上海市");
        event2.setEventTime(LocalDateTime.now().minusHours(2));
        event2.setOperator("李四");
        event2.setRemark("正常");
        events.add(event2);
        
        dto.setEvents(events);
        
        return dto;
    }

    @Override
    public BigDecimal calculateFreight(Long orderId, BigDecimal weight, String destination) {
        log.info("计算运费，orderId: {}, weight: {}, destination: {}", orderId, weight, destination);
        
        // TODO: 实际实现中应该根据运费规则计算
        // 这里简单按重量计算：基础费用10元 + 重量费用(每公斤5元)
        BigDecimal baseFee = new BigDecimal("10.00");
        BigDecimal weightFee = weight.multiply(new BigDecimal("5.00"));
        BigDecimal totalFee = baseFee.add(weightFee);
        
        // 根据目的地调整费用
        if (destination.contains("北京") || destination.contains("上海") || destination.contains("广州")) {
            // 一线城市，费用不变
        } else if (destination.contains("省")) {
            // 省级城市，增加2元
            totalFee = totalFee.add(new BigDecimal("2.00"));
        } else {
            // 其他地区，增加5元
            totalFee = totalFee.add(new BigDecimal("5.00"));
        }
        
        return totalFee;
    }

    @Override
    public Boolean ship(Long orderId, Long providerId) {
        log.info("发货，orderId: {}, providerId: {}", orderId, providerId);
        
        // TODO: 实际实现中应该执行发货流程
        // 1. 创建物流记录
        // 2. 调用物流服务商API创建运单
        // 3. 更新订单状态
        // 4. 发送通知
        
        return true;
    }

    @Override
    public Boolean updateStatus(Long logisticsId, Integer status) {
        log.info("更新物流状态，logisticsId: {}, status: {}", logisticsId, status);
        
        // TODO: 实际实现中应该更新数据库中的物流状态
        // 1. 验证状态转换是否合法
        // 2. 更新物流状态
        // 3. 记录状态变更日志
        // 4. 发送状态变更通知
        
        return true;
    }

}
